Meat-slicing machine.



P. M. ANDERSON.

MEAT SLICING;'MACHINE. APPLlcAIxoN FILEDv Aue, 1'3. 19.1.5.

1,227,233. Patented May 22,1917.

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P. M. ANDERSON. MEAT sucmc MACHINE.,

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P. M. ANDERSON.'

MEAT SLICINGMACHINE.

APPLlcAn/ou FILED AUG.|3. 1915.

1,227,233. v Patented May 22, 1917.

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"P. M. ANDERSON. MEAT SI .ICING MACHINE.

Patented May 22, 1917.

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APPLICATION FILED AUG I3 19I5 P. M. ANDERSON.

vMEAT SLICING MACHINE.

APPLICA-nou man AUGJS. 1915.

Patented May 22,- 1917.

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P. M. ANDERSON. MEAT suc-ING MACHINE.

APPLICATION LenAueJa. 1915. l 1,227,233.

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Patented May 22, 1917.

P. IvI. ANDERSON.

MEAT SLICING MACHINE.

APPLICATION FILED Aue. I3. 1915.

1 ,227,233. mma May 22, 1917.

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PEER M. ANDERSON, OF CHICAGQ' ILLINOIS.

MEAT-SLICING MACHINE.

Specification of Letters Patent.

Patented May 22, i917.

Application led August 13, 1915. Serial No. 45,294.

illinois, have invented a new vand useful Meat-Slicing Machine, of which the following is a specification.

This invention relates to meat slicing rnachines.

The obj ect of the invention is to provide a meat slicing machine which shall be simple, strong and durable in construction, which shall be effective for its designed purpose, and which shall have large capacity.r To this end, a meat slicing machine yof my invention comprises the various features, combinations of features and details of construction hereinafter described and claimed.

In the accompanying drawings in which my invention is fully illustrated,

Figure 1 is a top plan view of my improved meat slicing machine.

Fig. 2 is a side view of the machine from the position 2 2 of Fig. 1.

Fig. 3 is an end elevation of the machine from the position 3-3 of Fig. 1.

Fig. 4is an elevation of the opposite end of the machine from'thatV shown in Fig. 3.

Fig. 5 is a longitudinal sectional elevation on the line 5 5 of Fig. 1.

Fig. 6 is a transverse sectional elevation on the line 6-6 of Fig. 2.

Figs. 7 and 8 are enlarged fragmentary detailed views of the feed adjusting mechanisin.

Fig. 9 is a of Fig. 8.

Fig. 10 is an enlarged detailed view partly in section on the line 10--10 of Fig. 11; and

Fig. 11 isa sectional detail view on the line ll-ll of Fig. l0.

The operative parts of my improved meat slicing machine are mounted upon a suitable frame consisting, as shown, of end frames designated, as a whole A, A each consisting of transverse members a and upright members or legs a', a2, and a3 which are consectional view on the line 9-9 ,nected between their ends. by transverse members a4 and which are preferably made curved or scrolled to impart an ornamental effect thereto. y

The lower ends of the legs a, a2 and a3 of the machine frame are rigidly secured to a base designated as a whole A2, comprising end members designated ai which are rigidly connected by marginal and intermediate frame members designated, respectively, as and a7. As shown, the legs a, a2 and a3 are bolted to upwardly projecting lugs as formed on the end members a5 of the base A2.

The meat is adapted to be sliced by a circularrcutterv 1 which is rotatably mounted in the upper end of standard 2.

As shown, said cutter 1 is secured to the inner end of a shaft 4 rotatably mounted in suitable bearings in a bearing boss 5 on the upper end of the standard 2. As shown the cutter 1 is provided with a central hole adapted to fit the inner end of the shaft 4 and is confined thereon between a collar 6 on said shaft and a washer 7' secured to the end of the shaft by means of a bolt or cap screw 8.

As shown, also, the bearing ,boss 5 is formed separate from the standard 2 and is threaded into a recess formed in the outer side of said standard. For reasons presently apparent, also, said boss is made hollow and an opening 9 formed in the under side thereof.

Rotation is adapted to be imparted to the cutter shaft 4 by means of suitable driving v connections witha source of power, preferably an electrical motor, not shown, said driving connections comprising'a worm gear 10 which intermeshes'with a worm on a wormshaft 1l, which is driven directly from the motor or lother source of power, said worm gear affording convenient means for reducing the rotative speed of the cutter I shaft 4, to a desired normal, say 150 R. P. M.

The means for supporting the meat and j for feeding it to the cutter 1 in the Operation of the machine, are as follows Mounted to rotate in suitablebearings on the end frames A, A is a shaft 12 secured to rotate with which is what may be vdescribed as a carriage supporting frame designated as a whole, B and which comprises end plates L, Z1 which are rigidly connected` by longitudinal frame plates h2 and by rods 13 which also form guides for the meat carriages proper, as presently described.

The meat to be sliced is adapted to be secured directly upon carriages designated as a whole C, which are adapted to be fed toward the meat` cutter 1 with an adjustable step by step movementwhich, as shown, is controlled by frame B.

As shown, there are three separate meat carriages C mounted on the frame B. Said rotation ofthe. carriage carriages with their feed mechanisms andV all associated appliances are in all respects duplicates of each other. A description of one thereof will therefore suffice for all and the accompanying descriptionA is, accord-V ingly, in the singular.

The carriage C is provided at its opposite ends with bearings fitted to the rods 13 which operate both to support and to guide the carriage C in its movement upward and from the cutter 1. As shown, said carriage C comprises a plate 14 on which the meatV is directly `'supported and which forms the body portion of said carriage. Said carriage preferably has upturned sides, the lateral edges thereof being upwardly curved, as shown at 15. Y

As shown, the bearings on the carriage C for the rods 13 are formed in lugs or ears 1G and 17 formed on or secured to the upturned lateral sides 15 of the plate 14 adjacent to opposite edges thereof. As shown, said lugs are preferably made separate from said plate 14 and are riveted or otherwise rigidly secured thereto. To reduce-friction, the bearings for the rods 18 in the lugs 1G and 17 will preferably be ball bearings.

1n the preferable construction shown, also, the carriage plate 14 is provided with a central thickened portion, formed at the lateral edges of which are shoulders 18 which arc fitted to the sides of a corresponding groove or recess 19 formed in the longitudinal frame plate b2. Ball bearings indicated at 2O are also provided between the plate 14 and frameV plate 52. Said ball bearings will operate, in an obvious manner, to support the carriage plate 14 out of contact with the adjacent upper surface of the frame plateV h2, regardless of the weight of said carriage plate 14Y or of the quantity of meat supported thereon, in operation, thereby practically eliminatingy all friction between said carriage plate 14 and the frame plate b2, in the operation of the machine.

Also, to prevent the accumulation of meat Y chips and other foreign substances on the upper surface of the frame plate .52, said plate is preferably provided with longitudinal slots or openings 21 through which all foreign substances will be free to fall.

The frame plate h2 will materially strengthen and stiffen the carriage supporting frame B but, while 1 consider their useV to hold the meat firmly in position on said carriage plate. y

The meat to be sliced is adapted to be held firmly in contact with the carriage plate 14, Y

V14. As shown, said chain belt 23 is adapted to be anchored to the lugs 16 by means of hooks 25 on said lugs, said lugs and hooks being preferably formed integral with each other. For convenience in engaging and disengaging the chain belt L3 with the hooks 25, a suitable handle 27 is connected to the end of said chain designed to be engaged with said hooks 25.

I will now describe the means for tightening and maintaining the chain belt or apron 23 tight, and for releasing the same, particular reference being had to Figs. 1() and 11 of the drawings.

The shaft isadapted to be turned to tighten the belt or apron 23 by means of a knob or han-d grip 28 secured to the end thereof which projects through the bracket lugs 17 which is adapted to engage the teeth` of a ratchet wheel SO secured to rotate with the shaft 24, said pawl being maintained yieldingly in engagement'with the teeth of said ratchet wheel by means of a spring 31 applied thereto, which is confined kin a recess formed in a boss on the bearing lug 17.

As shown, the means for disengaging the pawl 29 from the teeth of the ratchet wheel 30 to release the shaft 24 and thus relieve the n tension on the chain belt 23, are as follows The pawl 29 and ratchet wheel 30 are inclosed by a cap or cover 32 the open end of which is screw threaded to a rigid part of the bracket 17 whereb f tur-nino` said ca a orV cover will operate to impart bodily endwise movement to said cap or cover. Formed on the back side of the rear end of the pawl 29 is a projection 33 formed on the inner side of which is an inclined or cam surface 34, which is adapted to cooperate with a correspondingly inclined or cam surface 35 formed inside of the cap or cover 32 at the inner end of the screw thread in the open end thereof, the relation being such that, as the cap or groove82 is unscrewed from the projection on the bearing-lug 17, the cam surface 35 thereon will engage the cam surface 34 on the pawl 29 and will operate to turn said pawl pivotally against the force of the spring 31 applied thereto to diseng'age said pawl from the teeth of the ratchet wheel BO. .AsV preferably constructed, theV and said cap 32 may be conveniently grasped Y and turned with one hand.

For convenience and economy of construction, the projection on the lug 17 to whichV the pawl 29 is pivoted is'formed separate from said lug 17 and is secured thereto by screws, rivets or other suitable means. This construction may, however, be varied as desired.

Secured to or formed on the carriage frame, adjacent to the cutter 1 is what may be appropriately designated a dead knife 36 which extends into close proximity to the cutter 1, say from 1/10() to 1/64 of an inch. ln the operation of the machine the meat to be sliced, supported in the carriage C, is designed to rest against said dead knife 36, which will operate tosupport the meat and to slice the same a uniform thickness. As `shown, said dead knife is formed on the front end of the longitudinal frame plate b2 and is made in the form of a bow, the opening within said bow being of sufficient size to receive the largest piece of meat which the machine is designed to slice. As shown, the side of said dead knife 36 adjacent to the cutter 1 is contracted, forming an inclined interior shoulder 37 thereon, which projects upwardly into the path of travel of the front or advancing end of the carriage plate 14, which, is correspondingly inclined or beveled, thus permitting the front edge of said carriage plate 14 to be fed into close proximity to the cutter 1, but said inclined surface'37 on said 'dead knife forming a stop which will limit the movement of the carriage C in the direction of the cutter 1, the relation being such that said surface will stop said carriage a desired distance,

say 1/16 of an inch from said cutter.

While I consider the form of dead knife shown as being desirable and preferable, I do not wish to limit myself to this particularform, as my invention contemplates the use of any form of dead knife adapted for the purpose.

The carriage C is adapted to be fed toward the knife 1 with a step by step movement in the following manner z-Rotatably mounted in suitable bearings in the end plates Z), ZJ of the carriage rame is a feed screw 38 which is designed and adapted to coperate with a nut mounted on the carriage C, the relation being such that rotation of said feed screw in the proper direction will impart movement to the carriage C toward the cutter 1.

To provide for retracting the carriage C from the cutter 1, said nut is constructed and arranged to be quickly and conveniently engaged with and disengaged from the feed screw 38. As shown, said nut, designated 39, is made in the form of a segment of about 60 so asto only partially surround the feed screw 38, and is secured to or formed upon a bar 40, one end of which is pivoted to a lug or projection 41 which depends from the under side of the carriage plate 14. The bar 40 is adapted to be moved pivotally to effect engagement 0f said segmental nut with and disengagement of said nut from the feed screw 38 by means of a rod 42 the outer end of which projects laterally at the side of the carriage supporting frame B in position to be conveniently grasped and operated by the person operating the machine. The rod 42 extends through a slot formed in a block 43, which operates to support and maintain the same in operative position, the pivotal positions of the bar 40 on which the feed nut is formed corresponding to engagement of said nut 39 with the feed screw 38 Vand disengagement of said nut from said feed screw being defined by a rigid projection on the rod 42 consisting, as shown, of a pin 44 secured in said rod and which projects laterally therefrom and which is adapted to engage shoulders 45 and 46 on the block 43, engagement of said pin 44 with the shoulder 45 defining engagement of said feed nut with the 4feed screw and engagement of said pin with the shoulder 46 defining disengagement of said feed nut from said feed screw. When the rod 42 is moved to disengage the pin 44 from the shoulder 45, the bar 40 isadapted to be moved pivotally into disengaged position of the nut lby a spring applied thereto consisting, as shown, of aV coiled spring 47 inserted between the block 43 and a collar 48 secured in position on 'the rod 42, said spring 47 surrounding said rod 42 as a guide.

The projection 41 on the carriage plate 14 extends through a slot 49 formed in the longitudinal frame plate b2, said slot being of ksufficient length to provide for desired movement of the meat carriage toward and from the cutter 1. f

For convenience in retracting` the meat carriage C when the feed nut 39 is disengaged from the feed screw 38, said meat carriage is preferably provided with a suitable handle` consisting, as shown, of a projection 50 formed on or secured to the rear bearing lug 16 in position to be conveniently grasped by the machine operator.

As shown, also, the screw threads of the feed screw 38 terminate at such a distance from the front end of the machine that the feed nut 39 will pass out of engagement therewith before the front edge of the meat l shaft l2 and to the carriage supporting frame B secured thereto by means of suitable driving connection with the cutter shaft 4f, consisting, as shown, of gears 51 and 52 secured to the cutter shaft l and to said shaft 12, respectively, andintermediate idle gears rotatably mounted on studs secured in the standard 2, which connect said gears 5l and in train, the relation being such that said shaft 12 will be driven at the rate of about 14E R. l). M.

Feeding of the'meat carriage C toward the cutter l is effected by means operated by rotation of the carriage supporting frame B, in the following manner z-Secured to the rear end of the feed shaft 38 is a gear wheel the teeth of which are adapted to engage the teeth of a rack 5l secured to the frame member' thereby imparting a partial rotation to the feed shaft 38 while said feed lshaft is passing through the lower arcV of the circle described thereby, that is, while y -rack 54 may obviously be varied as desired to provide a desired maximum feed.

As preferably constructed, my improved meat slicing machine also comprises means for varying the feed of the meat carriage C from the desired maximum produced by the full number of teeth in the rack 54, to a desired minimum, Vwhich may be effected by reducing the operative number of said teeth in said rack. As shown in the drawings, this is effected in the following manner, particular reference being had to Figs. 7, 8 and 9 of the drawings.

Secured to the inner side of the frame member A, preferably by bolts, is a rack holderdesignated, as a whole, D said holder 'comprising plates 55 and 5G, one of vsaid plates, as snown the plate 56, being provided with a recess 57 one side of which is closed by the plate 55.

The rack teeth are all formed on separate Vbars or blocks 58, which are of substantially the same width as the recess 57, and the aggregate thickness of which is substantially equal to the length of said recess 57, the relation being such that said blocks or bars willV lit the recess 57 so as to be freely movable therein, but without appreciable play or lost motion. The upper surfaces of the blocks 58 are shaped to dene the arc of an internal gear with which the teeth of the gear wheel 53 will engage as the carriage supporting frame B rotates, each of the rack teeth Y5.9 extending radially with reference tothe arc defined by the upper ends of the blocks 58.

The tooth blocks 58 are made somewhat shorter than the depth of the recess 57, said rack blocks 58 being supported in operative position by means of a bar 60 which is fitted to and slidable endwise in a groove 61 formed lengthwise in the contacting sides of the plates 55 and 56 and which is adapted to engage corresponding grooves or notches 62 formed in the tooth bars 58, the relation being such that said tooth bars will be supported with their lower'ends above the bottom of the recess 57 a distance slightly greater than the height or length of the rack teeth 59.

Threaded into a hole or opening in the slide bar 60 is a rod 63 which projects through a slot 611- formed in the holder bar 55 and secured to or formed on the outer end of which is a hand grip or knob y65.

Said knob affords convenient means forade the rod 63 which is adapted to be drawn into strong frictional engagement with the outer surface of the holder bar 55 by turning the knob or hand grip 65 to screw the threaded rod 63 into the slide bar 60.

Between its ends, the slide bar 60 is offset, to form a raised portion 67 on the upper edge thereof and a recess 68 on its lower edge, the length of said raised portion being substantially equal'to the length of the recess 57 and Vthe width of the off-set portion of said slide bar being equal to the length of the grooves or notches 62 in the tooth bars 58.

Both ends of the raised portion 67 of the slide bar 60 are outwardly and downwardly inclined, as shown at 69, forming cam surfaces up or down which the tooth bars 68 will ride, as said slide bar 60 is moved endwise, to move said bars into Aor out of operative position.

`With the described construction, any desired number of rack vteeth 59 may be dropped down so that they will not engage the teeth of the gear wheel 53 on the feed shaft 38, by turning the grip or knob 65 to .release the slide bar 60 and moving said slide bar endwise out of engagement with the groove or notch 62 in any desired number of tooth bars 58, thus permitting said tooth bars to drop to the bottom of the recess 57 in the rack holder D and correspondingly reducing the feed of the meat cutter C. When a desired number of teeth have been thus dropped down into inoperative position, the grip or knob 65 is again turned to clamp the slide bar into position and the machine is again ready for use.

1t is believed that the operation of the machine is clearly apparent from the fore-v mames going description and that it need not therefore be described in detail.

I claim:-

1. In a meat slicing machine, the combination of a frame, a rotary cutter mounted thereon, a carriage supporting frame mounted in said machine frame and rotatable upon a horizontal axis, a meat carriage slidably mounted on said carriage supporting frame, means for securing the meat to be sliced upon said meat carriage, means for imparting rotation to said carriage supporting frame continuously in Aone direction, and means for feeding said meat carriage a frac* tional part of its full travel at each rotation of said carriage supporting frame, substantially as described.

2. In a meat slicing machine, the combination of a frame, a rotary cutter mounted thereon, a carriage supporting frame mounted in said machine frame and rotatable upon a horizontal axis, a meat carriage slidably mounted on said carriage supporting frame, means for securing the meat to be sliced upon said meat carriage, means for imparts ing rotation to said carriage supporting frame continuously in one direction, and feeding means for said meat carriage operatively controlled by rotation of said carriage supporting frame, substantially as described.

3. In a meat slicing machine, the combination of a frame, a rotary cutter mounted thereon, a carriage supporting frame mounted in said machine frame and rotatable upon a horizontal axis, a meat carriage slidably mounted on said carriage supporting frame, means for securing the meat to be sliced upon said meat carriage, means for imparting rotation to said carriage supporting frame continuously in one direction, feeding means for said meat carriage, and manually controlled means for throwing said feeding means in and-out, substantially as described.

4. In a meat slicing machine, the combination of a frame, a rotary cutter mounted thereon, a carriage supporting frame mounted in said machine frame and rotatable upon a horizontal axis, a meat carriage slidably mounted on said carriage supporting frame, means for securing the meat to be sliced upon said meat carriage, means for imparting rotation to said carriage supporting frame continuously in one direction, feeding means for said meat carriage, manually controlled means for throwing said feeding means in and out, and means for varying the feed, substantially as described.

meat carriages slidably mounted on said carriage supporting frame said carriage supporting frame and the arrangement of said carriages being symmetrical about the axis of rotation of said carriage supporting frame, Whereby a substantially balanced structure is produced, substantially as described.

6. In a meat slicing machine, the combination of a frame, a rotary cutter mounted thereon, a carriage supporting frame mounted in said machine frame and rotatable upon a horizontal axis said carriage supporting frame comprising end plates, and rods Which rigidly connect said end plates, a meat carriage slidably mounted on said rods, means for securing the meat to be sliced upon said meat carriage, means for imparting rotation to said carriage supporting frame continuously in one direction, and feeding means for said meat carriage, substantially as described.

7. In a meat slicing machine, the combination of a frame, a rotary cutter mounted thereon, a carriage supporting frame mounted in said machine frame and rotatable upon a horizontal axis said carriage supporting frame comprising end plates, and rods and plates Which rigidly connect said end plates, a meat carriage slidably mounted on said rods and Whiehoverlie said frame plates, said meat carriage and said frame plates being provided With engaging. guide bearings comprising raised longitudinal shoulders on one thereof which engage depressed longitudinal shoulders on the other, means for securing the meat to be 'sliced upon said meat carriage, means for imparting rotation to said carriage supporting frame continuously in one direction, and feeding means for said meat carriage, substantially as described.

In testimony, that I claim the foregoing as my invention, I aiiix mysignature in the presence of tWo subscribing Witnesses this 10th day of August, A. D. 1915. l

PEHR M. ANDERSON.

Witnesses:

A. LYDA JONES, F. M. REICHEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

